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A hydroelectric generator converts kinetic energy of water into electrical energy. Each second 2915 m3 of...
Approximately 2.1 x 105 kg of water falls 14 m over a waterfall each second. (a)...
Approximately 2.1 x 105 kg of water falls 14 m over a waterfall each second. (a) What is the decrease in the gravitational potential energy of the water-Earth system each second? (b) If all this energy could be converted to electrical energy (it cannot be), at what rate would electrical energy be supplied? (The mass of 1 m3 of water is 1000 kg.) (c) If the electrical energy were sold at 1.7 cent/kW·h, what would be the yearly income in...
The vertical drop of water in a hydroelectric power plant is 155m (See figure below). Water...
The vertical drop of water in a hydroelectric power plant is 155m (See figure below). Water flows through the plant and into the lower river at the rate of 425m/s. Assume the overall efficiency of the plant as 80%. Density of water d is equal to 1000kg/m3 Acceleration due to gravity g is equal to 9.81m/s2. Ignore the viscous losses in the flowing water. Dam Water Reservoir Hm Turbine Generator River Figure: Schematic diagram of the hydroelectric power plant (a)...
The turbines ina hydroelectric plant kg/s. Assuming 74% efficiency for conversion of potential to electrical energy...
The turbines ina hydroelectric plant kg/s. Assuming 74% efficiency for conversion of potential to electrical energy, what is the electric power generated? fed by water falling from a 140 m height at a rate of 2.1 are
The turbines ina hydroelectric plant kg/s. Assuming 74% efficiency for conversion of potential to electrical energy, what is the electric power generated? fed by water falling from a 140 m height at a rate of 2.1 are
Approximately 1.0 x 106 kg of water falls 45 m over a waterfall each second. (a) What is the decrease in the gravitation...
Approximately 1.0 x 106 kg of water falls 45 m over a waterfall each second. (a) What is the decrease in the gravitational potential energy of the water-Earth system each second? (b) If all this energy could be converted to electrical energy (it cannot be), at what rate would electrical energy be supplied? (The mass of 1 m3 of water is 1000 kg.) (c) If the electrical energy were sold at 3.3 cent/kW·h, what would be the yearly income in...
A hydroelectric power facility converts the gravitational potential energy of water behind a dam to electric...
A hydroelectric power facility converts the gravitational potential energy of water behind a dam to electric energy. What is the gravitational potential energy relative to the generators of a lake of volume 35 km3km3, (3.50×10133.50×1013 kg) given that the lake has an average height of 63 m above the generators? ΔPEg=_______________ units=________________
1. A person with a remote mountain cabin plans to install her own hydroelectric plant. A...
1. A person with a remote mountain cabin plans to install her own hydroelectric plant. A nearby stream is 3.00 m wide and 0.500 m deep. Water flows at 1.20 m/s over the brink of a waterfall 5.00 m high. The manufacturer promises only 25.0% efficiency in converting the potential energy of the water-Earth system into electric energy. Find the power she can generate. (Large scale hydroelectric plants, with a much larger drop, are more efficient.) Hint: Density of water...
Please help me thanks. The vertical drop of water in a hydroelectric power plant is 125m...
Please help me thanks.
The vertical drop of water in a hydroelectric power plant is 125m (See figure below). Water flows through the plant and into the lower river at the rate of 325m/s. Assume the overall efficiency n of the plant as 80%. Density of water d is equal to 1000kg/mº. Acceleration due to gravity g is equal to 9.81m/s2. Ignore the viscous losses in the flowing water. Dam Water Reservoir Hm Turbine Generator River Figure: Schematic diagram of...
25. In a hydroelectric dam, water falls 25 m and then spins a turbine to generate...
25. In a hydroelectric dam, water falls 25 m and then spins a turbine to generate electricity. a) What is U, of 1.0 kg of water? b) Suppose the dam is 80% efficient at converting the water's potential energy to electrical energy. How many kilograms of water must pass through the turbines each second to generate 50 MW of electricity? This is a typical value for a small hydroelectric dam.
1. if a waterfall is 100 ft high, estimate the speed of the water when it...
1. if a waterfall is 100 ft high, estimate the speed of the water when it hits the rocks below. 2. Large rivers have flow rates that are at least 20,000 cubic feet per second. If a 100 ft high waterfall exists on such a river, and a hydroelectric power plant uses the falling water to generate energy, what is the maximum possible amount of energy that can be generated per second? 3. The average household consumes about 100 GJ...
ENGR 320 Exam2 Name 1: (15+5 pts) A hydroelectric power plant takes in 25 m's of water through it...
ENGR 320 Exam2 Name 1: (15+5 pts) A hydroelectric power plant takes in 25 m's of water through its turbine and discharges it to the atmosphere at V2-I m/s. The head loss in the turbine and penstock system is 10 m. Assuming turbulent flow, a -1.12, (a) What it the power in MW extracted by the turbine? () If the efficiency of the turbine and electrical generator is 85% what is the net power (in MW) generated by this plant?...
The vertical drop of water in a hydroelectric power plant is 155m (See figure below). Water flows through the plant and into the lower river at the rate of 425m/s. Assume the overall efficiency of the plant as 80%. Density of water d is equal to 1000kg/m3 Acceleration due to gravity g is equal to 9.81m/s2. Ignore the viscous losses in the flowing water. Dam Water Reservoir Hm Turbine Generator River Figure: Schematic diagram of the hydroelectric power plant (a)...
The turbines ina hydroelectric plant kg/s. Assuming 74% efficiency for conversion of potential to electrical energy, what is the electric power generated? fed by water falling from a 140 m height at a rate of 2.1 are
The turbines ina hydroelectric plant kg/s. Assuming 74% efficiency for conversion of potential to electrical energy, what is the electric power generated? fed by water falling from a 140 m height at a rate of 2.1 are
1. A person with a remote mountain cabin plans to install her own hydroelectric plant. A nearby stream is 3.00 m wide and 0.500 m deep. Water flows at 1.20 m/s over the brink of a waterfall 5.00 m high. The manufacturer promises only 25.0% efficiency in converting the potential energy of the water-Earth system into electric energy. Find the power she can generate. (Large scale hydroelectric plants, with a much larger drop, are more efficient.) Hint: Density of water...
Please help me thanks.
The vertical drop of water in a hydroelectric power plant is 125m (See figure below). Water flows through the plant and into the lower river at the rate of 325m/s. Assume the overall efficiency n of the plant as 80%. Density of water d is equal to 1000kg/mº. Acceleration due to gravity g is equal to 9.81m/s2. Ignore the viscous losses in the flowing water. Dam Water Reservoir Hm Turbine Generator River Figure: Schematic diagram of...
25. In a hydroelectric dam, water falls 25 m and then spins a turbine to generate electricity. a) What is U, of 1.0 kg of water? b) Suppose the dam is 80% efficient at converting the water's potential energy to electrical energy. How many kilograms of water must pass through the turbines each second to generate 50 MW of electricity? This is a typical value for a small hydroelectric dam.
ENGR 320 Exam2 Name 1: (15+5 pts) A hydroelectric power plant takes in 25 m's of water through its turbine and discharges it to the atmosphere at V2-I m/s. The head loss in the turbine and penstock system is 10 m. Assuming turbulent flow, a -1.12, (a) What it the power in MW extracted by the turbine? () If the efficiency of the turbine and electrical generator is 85% what is the net power (in MW) generated by this plant?...
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